bzr commit into mysql-5.0-bugteam branch (azundris:2741) Bug#43254

[Tatiana A. Nurnberg]

#At file:///misc/mysql/forest/43254_/mysql-5.0-bugteam/ based on revid:joro@stripped

 2741 Tatiana A. Nurnberg	2009-03-23
      Bug#43254: SQL_SELECT_LIMIT=0 crashes command line client
      
      When asking what database is selected, client expected
      to *always* get an answer from the server.
      
      We now handle failure more gracefully.
      
      See comments in ticket for a discussion of what happens,
      and how things interlock.
     @ client/mysql.cc
        Handle empty result-sets gracefully, as opposed
        to just result sets with n>0 items that may themselves
        be empty.

    modified:
      client/mysql.cc
=== modified file 'client/mysql.cc'
--- a/client/mysql.cc	2009-02-10 12:39:14 +0000
+++ b/client/mysql.cc	2009-03-23 04:08:32 +0000
@@ -2625,7 +2625,7 @@ static void get_current_db()
       (res= mysql_use_result(&mysql)))
   {
     MYSQL_ROW row= mysql_fetch_row(res);
-    if (row[0])
+    if (row && row[0])
       current_db= my_strdup(row[0], MYF(MY_WME));
     mysql_free_result(res);
   }


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